:root{--bg:#0a0e14;--panel:#0c111a;--panel2:#10151e;--bd:#1c2330;--bd2:#2a3340;
 --txt:#e5e9f0;--mut:#8b95a3;--mut2:#7d8794;--accent:#3b82f6;--accent2:#2563eb;
 --blue:#3b82f6;--grn:#16c784;--red:#ea3943;
 --accent-grad:linear-gradient(90deg,#2563eb,#3b82f6);--on-accent:#fff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font-family:Segoe UI,Roboto,Arial,sans-serif;font-size:15px}
a{color:var(--blue);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--on-accent);font-weight:800;
 border:none;border-radius:10px;padding:11px 18px;font-size:14px;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--accent2)}
.btn.ghost{background:transparent;color:var(--txt);border:1px solid var(--bd2)}
.btn.ghost:hover{border-color:var(--accent)}
.btn.sm{padding:7px 12px;font-size:12px;border-radius:8px}
input,select{background:var(--panel2);border:1px solid var(--bd2);border-radius:9px;color:var(--txt);
 padding:11px 13px;font-size:14px;outline:none;width:100%}
input:focus,select:focus{border-color:var(--accent)}
label{display:block;font-size:12px;font-weight:700;color:var(--mut);margin:0 0 6px;text-transform:uppercase;letter-spacing:.04em}
.field{margin:0 0 16px}
.hint{font-size:12px;color:var(--mut2);margin:6px 0 0}
.flash{padding:11px 14px;border-radius:10px;margin:0 0 14px;font-size:13px;font-weight:600}
.flash.error{background:rgba(234,57,67,.1);border:1px solid rgba(234,57,67,.4);color:#ff9a9a}
.flash.ok{background:rgba(22,199,132,.1);border:1px solid rgba(22,199,132,.4);color:#7ef0c0}

/* auth pages */
.authwrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.authcard{background:var(--panel);border:1px solid var(--bd);border-radius:16px;padding:30px;width:100%;max-width:400px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:22px;letter-spacing:-.02em}
.brand .mk{color:var(--accent)}
.authcard h1{font-size:21px;margin:18px 0 4px}
.authcard .sub{color:var(--mut2);font-size:13px;margin:0 0 22px}

/* landing */
.hero{max-width:760px;margin:0 auto;padding:90px 24px;text-align:center}
.hero h1{font-size:44px;line-height:1.1;margin:18px 0 14px;letter-spacing:-.02em}
.hero p{color:var(--mut);font-size:18px;margin:0 0 26px}
.steps{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin:48px 0 0;text-align:left}
.step{background:var(--panel);border:1px solid var(--bd);border-radius:14px;padding:18px;flex:1;min-width:200px}
.step .n{color:var(--accent);font-weight:900;font-size:13px}
.step h3{margin:8px 0 6px;font-size:16px}.step p{color:var(--mut2);font-size:13px;margin:0}

/* app shell */
.shell{display:flex;min-height:100vh}
.side{width:230px;background:#0b0f17;border-right:1px solid var(--bd);padding:18px 14px;flex:0 0 auto;transition:width .15s ease}
.side .brand{padding:4px 8px 20px;font-size:19px}
.side-top{display:flex;align-items:flex-start;gap:8px}
.side-top .brand{flex:1;min-width:0}
.navtoggle{background:transparent;border:1px solid var(--bd2);color:var(--mut);border-radius:8px;width:28px;height:28px;
  cursor:pointer;flex:0 0 auto;font-size:14px;line-height:1}
.navtoggle:hover{color:var(--txt);border-color:var(--accent)}
.side a.nav .ico{width:18px;text-align:center;flex:0 0 auto}
.shell.nav-collapsed .side{width:60px;padding:18px 8px}
.shell.nav-collapsed .side .lbl{display:none}
.shell.nav-collapsed .side a.nav{justify-content:center;padding:11px 0;gap:0}
.shell.nav-collapsed .side-top{justify-content:center}
.side a.nav{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:10px;color:var(--mut);
 font-weight:700;font-size:14px;margin:0 0 3px}
.side a.nav:hover{background:#141b26;color:var(--txt)}
.side a.nav.active{background:var(--accent-grad);color:var(--on-accent)}
.side .sp{flex:1}
.main{flex:1;padding:26px 30px;max-width:1180px}
.main h2{margin:0 0 4px;font-size:24px}.main .s{color:var(--mut2);margin:0 0 22px;font-size:14px}

.grid3{display:grid;grid-template-columns:1.1fr 1fr 1.1fr;gap:16px}
.card{background:var(--panel);border:1px solid var(--bd);border-radius:14px;padding:18px}
.card h3{margin:0 0 12px;font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--accent)}
.card h3.opt{color:var(--mut)}
.urlbox{display:flex;gap:8px}
.urlbox input{font-family:Consolas,monospace;font-size:13px}
pre.preview{background:#070a0f;border:1px solid var(--bd);border-radius:12px;padding:16px;font-size:13px;
 color:#cbd5e1;font-family:Consolas,monospace;overflow:auto;margin:0;white-space:pre-wrap;line-height:1.6}
.pill{display:inline-block;padding:3px 10px;border-radius:7px;font-size:11px;font-weight:800}
.pill.on{background:rgba(22,199,132,.12);color:var(--grn);border:1px solid rgba(22,199,132,.4)}
.pill.off{background:rgba(240,160,32,.1);color:#f0a020;border:1px solid rgba(240,160,32,.4)}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg .opt{padding:9px 14px;border:1px solid var(--bd2);border-radius:9px;font-weight:800;font-size:13px;cursor:pointer;color:var(--mut)}
.seg .opt.sel{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.seg button.opt{font:inherit;background:var(--panel2)}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;color:var(--mut);font-size:11px;text-transform:uppercase;padding:8px;border-bottom:1px solid var(--bd)}
td{padding:8px;border-bottom:1px solid #141a24}
.mono{font-family:Consolas,monospace}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
/* trading overview + risk */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:0 0 22px}
.kpi{background:var(--panel);border:1px solid var(--bd);border-radius:14px;padding:15px 18px}
.kpi .k{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--mut)}
.kpi .v{font-size:25px;font-weight:800;margin-top:6px;letter-spacing:-.01em}
.kpi .sub{font-size:12px;color:var(--mut2);margin-top:2px}
.pos{color:var(--grn)}.neg{color:var(--red)}
td.r,th.r{text-align:right}
.bar{display:inline-block;height:9px;border-radius:3px;vertical-align:middle}
.tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;font-weight:700;background:#141b26;color:var(--mut)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}

@media(max-width:900px){.shell{flex-direction:column}.side{width:100%;border-right:none;border-bottom:1px solid var(--bd)}
 .grid3{grid-template-columns:1fr}.two{grid-template-columns:1fr}.main{padding:18px}}